<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>touch</title>
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <style>
        div{
            width:10vw;
            height:10vh;
            background-color: gold;
        }
    </style>
</head>
<body>
<div>

</div>
<script>
var oDiv=document.querySelector("div");
oDiv.addEventListener("touchstart",function(ev){
    console.log(ev.touches);
})
</script>
</body>
</html>